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Laplacian Preconditioning of Elliptic PDEs: Localization of the Eigenvalues of the Discretized Operator
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
In [IMA J. Numer. Anal., 29 (2009), pp. 24--42], Nielsen, Tveito, and Hackbusch study the operator generated by using the inverse of the Laplacian as the preconditioner for second order elliptic PDEs $-\nabla \cdot (k(x) ...